---

yaml --- r: 112942 b: refs/heads/master c: ae4d537 h: refs/heads/master v: v3
git-mirror · Sep 13, 2008 · 75d2690 · 75d2690
1 parent 7137f65
commit 75d2690
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Showing 2 changed files with 15 additions and 1 deletion.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: df22291ff0fde0d350cf15dac3e5cc33ac528875
+refs/heads/master: ae4d537211ff250a8c23c4f1227c4276cd2508ab
diff --git a/trunk/fs/ext4/inode.c b/trunk/fs/ext4/inode.c
@@ -1391,6 +1391,13 @@ static int ext4_write_begin(struct file *file, struct address_space *mapping,
 		unlock_page(page);
 		ext4_journal_stop(handle);
 		page_cache_release(page);
+		/*
+		 * block_write_begin may have instantiated a few blocks
+		 * outside i_size.  Trim these off again. Don't need
+		 * i_size_read because we hold i_mutex.
+		 */
+		if (pos + len > inode->i_size)
+			vmtruncate(inode, inode->i_size);
 	}
 
 	if (ret == -ENOSPC && ext4_should_retry_alloc(inode->i_sb, &retries))
@@ -2560,6 +2567,13 @@ static int ext4_da_write_begin(struct file *file, struct address_space *mapping,
 		unlock_page(page);
 		ext4_journal_stop(handle);
 		page_cache_release(page);
+		/*
+		 * block_write_begin may have instantiated a few blocks
+		 * outside i_size.  Trim these off again. Don't need
+		 * i_size_read because we hold i_mutex.
+		 */
+		if (pos + len > inode->i_size)
+			vmtruncate(inode, inode->i_size);
 	}
 
 	if (ret == -ENOSPC && ext4_should_retry_alloc(inode->i_sb, &retries))